      <div class="span9">
        <div class="alert alert-error" style='display:none'>
          <button type="button" class="close" data-dismiss="alert">&times;</button>
          密码验证失败，请重新输入！
        </div>
        <div class="well">
          <button type="botton" class="btn" id="btn_clear">清除Flowy状态</button>
        </div>